Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série RENC-THEO
Domaines hep-th
Date Jeudi 17 Mai 2018
Heure 11:40
Institut IHP
Salle 314
Nom de l'orateur Johansson
Prenom de l'orateur Henrik
Addresse email de l'orateur
Institution de l'orateur Uppsala Universitet
Titre Heterotic and Bosonic String Amplitudes via Field Theory
Résumé Previous work has shown that massless tree amplitudes of the type I and IIA/B superstrings can be simplified by expressing them as double copies between field-theory amplitudes and scalar disk/sphere integrals, the latter containing all the alpha'-corrections. In this talk, I will introduce similar double-copy constructions for the heterotic and bosonic string theories using an alpha'- dependent field theory and the same disk/sphere integrals. Surprisingly, this field theory, built out of dimension-six operators such as (DF)^2, has previously appeared in the double-copy construction of conformal supergravity.
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